125 lines
4.2 KiB
C
125 lines
4.2 KiB
C
/* cv.h
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*
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* Copyright (c) 1991-2000, Larry Wall
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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/* This structure much match XPVCV in B/C.pm and the beginning of XPVFM
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* in sv.h */
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struct xpvcv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xp_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xof_off; /* integer value */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* magic for scalar array */
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HV* xmg_stash; /* class package */
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HV * xcv_stash;
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OP * xcv_start;
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OP * xcv_root;
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void (*xcv_xsub) (pTHXo_ CV*);
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ANY xcv_xsubany;
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GV * xcv_gv;
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char * xcv_file;
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long xcv_depth; /* >= 2 indicates recursive call */
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AV * xcv_padlist;
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CV * xcv_outside;
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#ifdef USE_THREADS
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perl_mutex *xcv_mutexp;
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struct perl_thread *xcv_owner; /* current owner thread */
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#endif /* USE_THREADS */
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cv_flags_t xcv_flags;
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};
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/*
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=for apidoc AmU||Nullcv
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Null CV pointer.
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=for apidoc Am|HV*|CvSTASH|CV* cv
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Returns the stash of the CV.
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=cut
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*/
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#define Nullcv Null(CV*)
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#define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash
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#define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start
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#define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root
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#define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub
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#define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany
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#define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv
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#define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file
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#define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv))
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#define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth
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#define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist
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#define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside
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#ifdef USE_THREADS
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#define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp
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#define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner
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#endif /* USE_THREADS */
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#define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags
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#define CVf_CLONE 0x0001 /* anon CV uses external lexicals */
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#define CVf_CLONED 0x0002 /* a clone of one of those */
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#define CVf_ANON 0x0004 /* CvGV() can't be trusted */
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#define CVf_OLDSTYLE 0x0008
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#define CVf_UNIQUE 0x0010 /* can't be cloned */
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#define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV
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(esp. useful for special XSUBs) */
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#define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */
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#define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */
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#define CVf_LVALUE 0x0100 /* CV return value can be used as lvalue */
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#define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE)
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#define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE)
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#define CvCLONE_off(cv) (CvFLAGS(cv) &= ~CVf_CLONE)
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#define CvCLONED(cv) (CvFLAGS(cv) & CVf_CLONED)
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#define CvCLONED_on(cv) (CvFLAGS(cv) |= CVf_CLONED)
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#define CvCLONED_off(cv) (CvFLAGS(cv) &= ~CVf_CLONED)
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#define CvANON(cv) (CvFLAGS(cv) & CVf_ANON)
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#define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON)
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#define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON)
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#ifdef PERL_XSUB_OLDSTYLE
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#define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE)
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#define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE)
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#define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE)
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#endif
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#define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE)
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#define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE)
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#define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE)
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#define CvNODEBUG(cv) (CvFLAGS(cv) & CVf_NODEBUG)
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#define CvNODEBUG_on(cv) (CvFLAGS(cv) |= CVf_NODEBUG)
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#define CvNODEBUG_off(cv) (CvFLAGS(cv) &= ~CVf_NODEBUG)
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#define CvMETHOD(cv) (CvFLAGS(cv) & CVf_METHOD)
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#define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD)
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#define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD)
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#define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED)
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#define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED)
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#define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED)
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#define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE)
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#define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE)
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#define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE)
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#define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv))
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#define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv))
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#define CvEVAL_off(cv) CvUNIQUE_off(cv)
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/* BEGIN|INIT|END */
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#define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv))
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#define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv))
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#define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv))
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